Results

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Results on page last updated: 08/07/2019

Chemical Group: Environmental Phenols

  • Measured in: Urine

Project: Biomonitoring Exposures Study (BEST) - 1.Pilot

Diverse group of smiling adults
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Benzophenone-3 Benzophenone-3 µg/L 109 24.4 16.0 37.2 5.70 22.8 86.7 797 94.5% 0.500 µg/L
Bisphenol A Bisphenol A µg/L 109 1.40 1.08 1.80 0.660 1.31 2.82 13.3 89.9% 0.200 µg/L
Butyl paraben Butyl Paraben µg/L 109 * * * <LOD <LOD <LOD 13.5 21.1% 0.500 µg/L
Ethyl paraben Ethyl Paraben µg/L 109 * * * <LOD <LOD 6.83 127 44.0% 0.500 µg/L
Methyl paraben Methyl Paraben µg/L 105 78.4 56.2 109 21.7 76.4 282 1,060 99.0% 0.500 µg/L
Propyl paraben Propyl Paraben µg/L 109 7.66 4.89 12.0 0.555 8.38 49.1 367 75.2% 0.500 µg/L
Triclosan Triclosan µg/L 109 11.7 7.77 17.5 2.54 9.29 44.3 702 96.3% 0.200 µg/L

Project: Biomonitoring Exposures Study (BEST) - 2.Expanded

Diverse group of smiling adults
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Benzophenone-3 Benzophenone-3 µg/L 218 73.4 51.9 103 12.5 64.4 479 6870 92.2% 1.00 µg/L
Bisphenol A Bisphenol A µg/L 218 1.40 1.19 1.64 0.728 1.55 3.25 7.18 96.3% 0.100 µg/L
Butyl paraben Butyl Paraben µg/L 218 * * * <LOD <LOD 0.542 12.7 33.5% 0.200 µg/L
Ethyl paraben Ethyl Paraben µg/L 218 * * * <LOD <LOD 18.0 183 47.7% 1.00 µg/L
Methyl paraben Methyl Paraben µg/L 218 77.4 59.7 100 26.2 95.3 334 994 94.5% 1.00 µg/L
Propyl paraben Propyl Paraben µg/L 218 10.9 8.26 14.5 1.19 11.6 56.1 319 76.1% 1.00 µg/L
Triclosan Triclosan µg/L 218 12.4 9.05 17.0 2.25 9.11 67.1 851 98.6% 0.100 µg/L

Project: Firefighter Occupational Exposures (FOX) Project

Firefighters fighting flames, wearing full protective suits and holding large hoses spraying water
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Benzophenone-3 Benzophenone-3 µg/L 101 78.5 58.3 106 27.0 79.3 186 867 100% 1.00
Bisphenol A Bisphenol A µg/L 101 1.58 1.25 1.99 0.718 1.53 3.16 11.9 94.1% 0.20
Butyl paraben Butyl paraben µg/L 101 * * * <LOD <LOD 0.68 5.9 44.6% 0.50
Ethyl paraben Ethyl paraben µg/L 101 * * * <LOD <LOD 2.52 56.5 35.6% 1.0
Methyl paraben Methyl paraben μg/L 101 46.9 34.2 64.3 19.6 48.0 108 687 98.0% 1.0
Propyl paraben Propyl paraben μg/L 101 * * * <LOD 2.96 19.0 135 61.4% 1.0
Triclosan Triclosan μg/L 101 20.2 13.5 30.2 3.00 19.6 103 563 99.0% 0.50

Project: Maternal and Infant Environmental Exposure Project (MIEEP)

Pregnant woman seated in front of a laptop computer
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Limit of Detection (LOD), wet-weight
Benzophenone-3 Benzophenone-3 μg/L 89 33.0 20.5 53.2 8.41 26.6 124 1320 0.50
Bisphenol A Bisphenol A μg/L 89 1.25 0.984 1.58 0.490 1.27 3.13 4.85 0.20
Triclosan Triclosan μg/L 89 17.2 10.5 28.2 2.44 11.1 139 445 1.0

Chemical Group: Herbicides

  • Measured in: Urine

Project: Biomonitoring Exposures Study (BEST) - 1.Pilot

Diverse group of smiling adults
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
2,4-D 2_4-D µg/L 109 0.304 0.245 0.376 0.163 0.340 0.617 1.92 90.8% 0.0500 µg/L

Project: Firefighter Occupational Exposures (FOX) Project

Firefighters fighting flames, wearing full protective suits and holding large hoses spraying water
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
2,4,5-T 2,4,5-T μg/L 101 * * * <LOD <LOD <LOD <LOD 0% 0.050
2,4-D 2,4-D μg/L 101 0.27 0.21 0.34 0.13 0.28 0.51 1.46 90.1% 0.050

Chemical Group: Metals

  • Measured in: Blood

Project: Asian/Pacific Islander Community Exposures (ACE) Project - ACE 1

A mulit-generational family of Asian-Americans sharing a meal
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Detection frequency Limit of Detection (LOD), wet-weight
Cadmium Cadmium µg/L 96 0.524 0.462 0.595 0.344 0.520 0.801 1.15 99% 0.150
Lead Lead µg/dL 96 1.23 1.11 1.37 0.843 1.23 1.90 2.37 100% 0.0500
Mercury Mercury µg/L 96 3.58 3.01 4.26 2.47 4.12 7.13 9.24 100% 0.150

Project: Asian/Pacific Islander Community Exposures (ACE) Project - ACE 2

A mulit-generational family of Asian-Americans sharing a meal
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Detection frequency Limit of Detection (LOD), wet-weight
Cadmium Cadmium µg/L 99 0.592 0.526 0.666 0.374 0.609 0.892 1.29 100% 0.0750
Lead Lead µg/dL 99 1.12 1.02 1.22 0.858 1.06 1.41 2.07 100% 0.0250
Mercury Mercury µg/L 99 4.77 4.13 5.51 3.22 5.18 8.04 9.99 100% 0.0750

Project: Biomonitoring Exposures Study (BEST) - 1.Pilot

Diverse group of smiling adults
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Cadmium Cadmium µg/L 110 0.271 0.237 0.311 0.170 0.275 0.390 0.990 100% 0.06 µg/L
Lead Lead µg/dL 110 1.05 0.931 1.18 0.700 1.05 1.47 2.45 100% 0.02 µg/dL
Manganese Manganese µg/L 110 8.09 7.62 8.58 6.50 8.40 9.80 13.4 100% 0.45 µg/L
Mercury Mercury µg/L 110 0.748 0.602 0.929 0.370 0.745 1.79 4.26 99.1% 0.04 µg/L

Project: Biomonitoring Exposures Study (BEST) - 2.Expanded

Diverse group of smiling adults
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Cadmium Cadmium µg/L 315 0.266 0.249 0.285 0.175 0.249 0.393 0.927 100% 0.0111 µg/L
Lead Lead µg/dL 315 0.841 0.776 0.911 0.484 0.825 1.38 2.61 100% 0.0109 µg/dL
Manganese Manganese µg/L 315 9.55 9.24 9.87 7.91 9.57 11.7 15.9 100% 1.00 µg/L
Mercury Mercury µg/L 315 0.826 0.731 0.933 0.437 0.814 1.77 4.88 99.7% 0.0294 µg/L

Project: Firefighter Occupational Exposures (FOX) Project

Firefighters fighting flames, wearing full protective suits and holding large hoses spraying water
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD)
Cadmium Cadmium μg/L 101 0.19 0.18 0.21 0.15 0.20 0.24 0.35 78.2% 0.15
Lead Lead μg/dL 101 0.957 0.872 1.05 0.690 0.950 1.22 2.01 100% 0.02
Manganese Manganese μg/L 101 7.61 7.26 7.98 6.50 7.70 8.79 11.4 100% 0.54
Mercury Mercury μg/L 101 2.79 2.36 3.30 1.82 2.90 5.48 9.79 100% 0.06

Project: Maternal and Infant Environmental Exposure Project (MIEEP)

Pregnant woman seated in front of a laptop computer
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Limit of Detection (LOD), wet-weight
Cadmium Cadmium μg/L 77 0.22 0.19 0.24 0.16 0.22 0.31 0.38 0.14 and 0.15**
Lead Lead μg/dL 77 0.65 0.57 0.75 0.45 0.60 0.84 1.6 0.027
Mercury Mercury μg/L 77 0.45 0.37 0.54 0.26 0.46 0.76 1.1 0.064

Chemical Group: Metals

  • Measured in: Urine

Project: Asian/Pacific Islander Community Exposures (ACE) Project - ACE 1

A mulit-generational family of Asian-Americans sharing a meal
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Arsenic Arsenic µg/L 100 22.2 18.2 27.0 12.6 22.1 44.0 131 100% 0.162
Cadmium Cadmium µg/g creatinine 100 0.450 0.377 0.536 0.222 0.460 0.913 1.75 97% 0.0391 µg/L
Mercury Mercury µg/L 100 0.301 0.246 0.367 0.135 0.301 0.599 1.71 99% 0.0300

Project: Asian/Pacific Islander Community Exposures (ACE) Project - ACE 2

A mulit-generational family of Asian-Americans sharing a meal
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Arsenic Arsenic µg/L 100 33.6 27.4 41.1 18.0 35.4 70.5 121 100% 0.100
Cadmium Cadmium µg/g 100 0.625 0.527 0.740 0.353 0.712 1.12 2.16 99% 0.0300 µg/L
Mercury Mercury µg/L 100 0.432 0.349 0.535 0.218 0.418 0.816 2.11 97% 0.0500

Project: Biomonitoring Exposures Study (BEST) - 1.Pilot

Diverse group of smiling adults
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Arsenic Arsenic µg/L 108 11.6 9.30 14.5 5.08 10.9 21.5 102 100% 0.0493 µg/L
Cadmium Cadmium µg/g creatinine 108 0.301 0.267 0.339 0.186 0.300 0.461 0.853 100% 0.0420 µg/L
Mercury Mercury µg/L 108 0.210 0.168 0.263 0.087 0.217 0.509 1.14 98.1% 0.0163 µg/L

Project: Biomonitoring Exposures Study (BEST) - 2.Expanded

Diverse group of smiling adults
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Arsenic Arsenic µg/L 218 11.2 9.74 13.0 5.68 11.4 20.8 73.1 100% 0.0493 µg/L
Cadmium Cadmium µg/g creatinine 218 0.242 0.219 0.267 0.151 0.233 0.396 0.901 93.1% 0.0420 µg/L
Cobalt Cobalt µg/L 218 0.192 0.166 0.223 0.100 0.182 0.343 1.35 99.1% 0.0113 µg/L
Manganese Manganese µg/L 218 * * * <LOD 0.0655 0.115 0.416 59.6% 0.0499 µg/L
Mercury Mercury µg/L 218 0.201 0.168 0.241 0.100 0.222 0.478 1.59 93.6% 0.0163 µg/L
Molybdenum Molybdenum µg/L 218 46.7 41.2 53.1 25.2 51.2 90.6 207 100% 0.0736 µg/L
Thallium Thallium µg/L 218 0.177 0.159 0.196 0.129 0.199 0.295 0.465 99.1% 0.00982 µg/L
Tungsten Tungsten µg/L 218 0.0787 0.0667 0.0929 0.0401 0.0789 0.168 0.563 96.3% 0.00493 µg/L
Uranium Uranium µg/L 218 0.00770 0.00642 0.00923 0.00323 0.00775 0.0161 0.0807 86.2% 0.00134 µg/L

Project: Firefighter Occupational Exposures (FOX) Project

Firefighters fighting flames, wearing full protective suits and holding large hoses spraying water
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Detection frequency Limit of Detection (LOD), wet-weight
Arsenic Arsenic μg/L 101 10.8 9.03 12.9 6.05 10.4 21.0 34.9 100% 0.158
Cadmium Cadmium μg/g creatinine 101 0.145 0.132 0.160 <LOD 0.138 0.190 0.277 69.7% 0.105 μg/L
Manganese Manganese μg/L 99 * * * <LOD <LOD <LOD <LOD 9.1% 0.184
Mercury Mercury μg/L 101 0.455 0.382 0.542 0.221 0.447 0.914 1.28 100% 0.0522

Project: Maternal and Infant Environmental Exposure Project (MIEEP)

Pregnant woman seated in front of a laptop computer
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Limit of Detection (LOD), wet-weight
Arsenic Arsenic µg/L 89 7.71 6.39 9.32 4.34 8.15 11.2 34.9 0.158
Cadmium Cadmium μg/g creatinine 89 0.185 0.160 0.213 <LOD 0.178 0.257 0.364 0.105 μg/L
Mercury Mercury μg/L 89 0.212 0.164 0.274 0.0897 0.176 0.429 0.997 0.0522

Chemical Group: Organochlorine Pesticides

  • Measured in: Serum

Project: Biomonitoring Exposures Study (BEST) - 1.Pilot

Diverse group of smiling adults
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
beta-Hexachlorocyclohexane (beta-HCH) b-HCH ng/g lipid 110 7.00 5.42 9.05 2.98 5.94 11.5 115 89.1% 0.00800 ng/mL
DDE (para,para) para,para-DDT and/or para,para-DDE ng/g lipid 110 321 266 386 161 318 585 2180 100.0% 0.0160 ng/mL
DDT (ortho,para) ortho,para-DDT ng/g lipid 110 * * * <LOD <LOD <LOD <LOD 0.0% 0.00800 ng/mL
DDT (para,para) para,para-DDT ng/g lipid 110 * * * <LOD <LOD <LOD 10.6 15.5% 0.00800 ng/mL
Hexachlorobenzene (HCB) HCB ng/g lipid 110 11.6 10.8 12.5 9.21 11.4 14.0 20.6 100.0% 0.00800 ng/mL
Oxychlordane Chlordane ng/g lipid 110 7.61 6.41 9.02 5.45 8.30 13.2 28.4 91.8% 0.00800 ng/mL
trans-Nonachlor Chlordane ng/g lipid 110 14.3 12.0 17.0 8.31 14.5 25.1 60.8 99.1% 0.00800 ng/mL

Project: Biomonitoring Exposures Study (BEST) - 2.Expanded

Diverse group of smiling adults
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
beta-Hexachlorocyclohexane (beta-HCH) b-HCH ng/g lipid 217 * * * <LOD <LOD 8.73 62.9 47.5% 0.00800 ng/mL
DDE (para,para) para,para-DDT and/or para,para-DDE ng/g lipid 217 271 235 312 128 234 561 1970 100% 0.0160 ng/mL
DDT (ortho,para) ortho,para-DDT ng/g lipid 217 * * * <LOD <LOD <LOD <LOD 4.2% 0.00800 ng/mL
DDT (para,para) para,para-DDT ng/g lipid 217 2.16 1.96 2.38 <LOD 1.88 3.28 8.86 70.0% 0.00800 ng/mL
Hexachlorobenzene (HCB) HCB ng/g lipid 217 8.93 8.50 9.37 6.99 8.75 11.3 17.5 100% 0.0106 ng/mL
Oxychlordane Chlordane ng/g lipid 217 4.08 3.61 4.61 1.98 4.33 8.01 20.3 85.3% 0.00800 ng/mL
trans-Nonachlor Chlordane ng/g lipid 217 7.40 6.40 8.55 3.69 8.11 15.7 38.1 88.0% 0.00800 ng/mL

Project: California Childhood Leukemia Study (CCLS)

Logo shows three young bears in yellow color standing in a row holding hands, with the name of the study shown in blue
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Detection frequency Limit of Detection (LOD), wet-weight
beta-Hexachlorocyclohexane (beta-HCH) b-HCH ng/g lipid 48 5.7 3.8 8.5 <LOD 5.9 10 29 69% 0.010 ng/mL
DDE (para,para) DDT (para,para) and/or DDE (para,para) ng/g lipid 48 190 160 230 120 180 290 420 100% 0.027 ng/mL
DDT (ortho,para) DDT (ortho,para) ng/g lipid 48 3.7 3.0 4.6 <LOD 5.3 7.1 8.2 69% 0.012 ng/mL
DDT (para,para) DDT (para,para) ng/g lipid 48 4.3 3.5 5.2 3.3 4.1 6.3 9.0 88% 0.010 ng/mL
Hexachlorobenzene (HCB) HCB ng/g lipid 48 7.7 7.2 8.1 6.8 7.8 8.5 10 100% 0.010 ng/mL
Oxychlordane Chlordane ng/g lipid 48 4.6 4.1 5.2 3.9 5.0 5.8 7.1 98% 0.010 ng/mL
trans-Nonachlor Chlordane ng/g lipid 48 8.8 7.7 10 6.7 8.8 11 15 100% 0.011 ng/mL

Project: California Teachers Study (CTS)

95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
beta-Hexachlorocyclohexane (beta-HCH) b-HCH ng/g lipid 793 5.21 4.88 5.57 2.79 5.24 9.66 25.3 84.5% 0.015 ng/mL
DDE (para,para) DDT (para,para) and/or DDE (para,para) ng/g lipid 793 301 283 320 159 298 540 1360 100% 0.015 ng/mL
DDT (ortho,para) DDT (ortho,para) ng/g lipid 793 * * * <LOD <LOD <LOD <LOD 2.3% 0.031 ng/mL
DDT (para,para) DDT (para,para) ng/g lipid 793 1.94 1.87 2.02 <LOD 1.84 2.58 5.47 67.7% 0.015 ng/mL
Hexachlorobenzene (HCB) HCB ng/g lipid 793 12.0 11.7 12.2 9.75 11.9 14.3 20.8 100% 0.015 ng/mL
Oxychlordane Oxychlordane ng/g lipid 793 8.34 7.95 8.75 5.52 8.63 13.0 23.6 98.1% 0.015 ng/mL
trans-Nonachlor t-Nonachlor ng/g lipid 793 15.3 14.6 16.0 10.1 14.8 23.4 49.4 99.9% 0.015 ng/mL

Project: Firefighter Occupational Exposures (FOX) Project

Firefighters fighting flames, wearing full protective suits and holding large hoses spraying water
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
beta-Hexachlorocyclohexane (beta-HCH) beta-HCH ng/g lipid 101 2.19 2.00 2.41 1.68 2.23 2.83 4.64 97.0% 0.005 ng/mL
DDE (para,para) para,para-DDT and/or para,para-DDE ng/g lipid 101 177 161 196 125 182 245 394 100% 0.009 ng/mL
DDT (ortho,para) ortho,para-DDT ng/g lipid 101 * * * <LOD <LOD <LOD <LOD 4.0% 0.005 ng/mL
DDT (para,para) para,para-DDT ng/g lipid 101 1.34 1.20 1.50 <LOD 1.43 2.07 3.08 74.3% 0.005 ng/mL
Hexachlorobenzene (HCB) HCB ng/g lipid 101 11.8 11.3 12.4 10.3 11.7 13.2 17.6 100% 0.007 ng/mL
Oxychlordane Chlordane ng/g lipid 101 4.08 3.64 4.56 2.73 4.31 5.80 9.63 99.0% 0.005 ng/mL
trans-Nonachlor Chlordane ng/g lipid 101 7.32 6.57 8.15 5.07 7.32 10.2 16.6 100% 0.005 ng/mL

Project: Maternal and Infant Environmental Exposure Project (MIEEP)

Pregnant woman seated in front of a laptop computer
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Limit of Detection (LOD), wet-weight
beta-Hexachlorocyclohexane (beta-HCH) beta-HCH ng/g lipid 77 * * * <LOD 1.59 6.00 13.2 0.005 ng/mL
DDE (para,para) para,para-DDT and/or para,para-DDE ng/g lipid 77 112 85.1 149 53.0 94.0 161 516 0.005 ng/mL
DDT (ortho,para) ortho,para-DDT ng/g lipid 77 * * * <LOD <LOD <LOD <LOD 0.005 ng/mL
DDT (para,para) para,para-DDT ng/g lipid 77 * * * <LOD <LOD <LOD 18.2 0.005 ng/mL
Hexachlorobenzene (HCB) HCB ng/g lipid 77 8.26 7.58 8.99 6.50 8.43 10.1 12.5 0.034 ng/mL
Oxychlordane Chlordane ng/g lipid 77 * * * <LOD 0.93 1.6 3.2 0.005 ng/mL
trans-Nonachlor Chlordane ng/g lipid 77 1.69 1.41 2.02 1.09 1.80 2.87 4.88 0.006 ng/mL

Project: Measuring Analytes in Maternal Archived Samples (MAMAS)

Pregnant woman standing, hands holding her belly, in an outdoor setting
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Detection frequency Limit of Detection (LOD), wet-weight
beta-Hexachlorocyclohexane (beta-HCH) b-HCH ng/g lipid 58 * * * <LOD <LOD <LOD <LOD 1.7% 0.011 ng/mL
DDE (para,para) DDT (para,para) and/or DDE (para,para) ng/g lipid 58 82.6 61.7 110 38.8 72.5 155 433 100% 0.008 ng/mL
DDT (ortho,para) DDT (ortho,para) ng/g lipid 58 * * * <LOD <LOD <LOD <LOD 5.2% 0.010 ng/mL
DDT (para,para) DDT (para,para) ng/g lipid 58 * * * <LOD <LOD 1.85 5.59 25.9% 0.011 ng/mL
Hexachlorobenzene (HCB) HCB ng/g lipid 58 6.41 5.85 7.03 5.24 6.14 7.43 8.93 100% 0.012 ng/mL
Oxychlordane Oxychlordane ng/g lipid 58 * * * <LOD <LOD <LOD 1.69 20.7% 0.006 ng/mL
trans-Nonachlor t-Nonachlor ng/g lipid 58 * * * <LOD <LOD <LOD <LOD 1.7% 0.011 ng/mL

Chemical Group: Organophosphate Pesticides

  • Measured in: Urine

Project: Biomonitoring Exposures Study (BEST) - 1.Pilot

Diverse group of smiling adults
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
IMPY Diazinon µg/L 109 * * * <LOD <LOD 0.0944 0.708 35.8% 0.0500 µg/L
TCPy Chlorpyrifos, Chlorpyrifos-methyl µg/L 109 1.23 1.05 1.45 0.706 1.24 2.24 4.40 80.7% 0.500 µg/L

Project: Biomonitoring Exposures Study (BEST) - 2.Expanded

Diverse group of smiling adults
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
IMPY Diazanon µg/L 218 * * * <LOD <LOD 0.107 0.849 38.5% 0.0504 µg/L
TCPy Chlorpyrifos (Chlorpyrifos methyl) µg/L 218 0.974 0.878 1.08 <LOD 1.02 1.54 3.44 75.7% 0.500 µg/L

Project: Firefighter Occupational Exposures (FOX) Project

Firefighters fighting flames, wearing full protective suits and holding large hoses spraying water
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
IMPY Diazinon μg/L 101 0.16 0.12 0.20 <LOD 0.18 0.42 1.2 66.3% 0.050
TCPy Chlorpyrifos μg/L 101 1.78 1.47 2.15 0.823 1.96 3.32 10.4 89.1% 0.50

Project: Maternal and Infant Environmental Exposure Project (MIEEP)

Pregnant woman seated in front of a laptop computer
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Limit of Detection (LOD), wet-weight
DEDTP Phorate and others μg/L 89 * * * <LOD <LOD <LOD <LOD 0.10
DEP Chlorpyrifos, diazinon, and others μg/L 89 1.41 1.10 1.80 <LOD 1.76 3.51 6.79 0.50
DMDTP Dimethoate, malathion, methidathion, phosmet, and others μg/L 89 * * * <LOD <LOD <LOD <LOD 1.0
DMTP Dimethoate, malathion, methidathion, phosmet, and others μg/L 89 * * * <LOD <LOD <LOD <LOD 0.50
TCPy Chlorpyrifos μg/L 89 0.52 0.41 0.65 <LOD 0.53 1.2 2.2 0.20

Chemical Group: Other Pesticides

  • Measured in: Urine

Chemical Group: Perchlorate

  • Measured in: Urine

Chemical Group: Perfluoroalkyl and Polyfluoroalkyl Substances (PFASs)

  • Measured in: Serum

Project: Asian/Pacific Islander Community Exposures (ACE) Project - ACE 1

A mulit-generational family of Asian-Americans sharing a meal
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Detection frequency Limit of Detection (LOD), wet-weight
4:2 FTS 4:2 FTS ng/ml 96 * * * <LOD <LOD <LOD <LOD 0% 0.0120
5:3 FTCA 5:3 FTCA ng/ml 96 * * * <LOD <LOD <LOD <LOD 0% 0.0500
6:2 diPAP 6:2 diPAP ng/ml 96 * * * <LOD <LOD <LOD <LOD 7.3% 0.0500
6:2 FTCA 6:2 FTCA ng/ml 96 * * * <LOD <LOD <LOD <LOD 0% 0.250
6:2 FTS 6:2 FTS ng/ml 96 * * * <LOD <LOD <LOD <LOD 0% 0.0500
6:2 FTUCA 6:2 FTUCA ng/ml 96 * * * <LOD <LOD <LOD <LOD 0% 0.0120
6:6 PFPiA 6:6 PFPiA ng/ml 96 * * * <LOD <LOD <LOD <LOD 0% 0.0120
6:8 PFPiA 6:8 PFPiA ng/ml 96 * * * <LOD <LOD <LOD <LOD 0% 0.0500
7:3 FTCA 7:3 FTCA ng/ml 96 * * * <LOD <LOD <LOD <LOD 0% 0.0500
8:2 diPAP 8:2 diPAP ng/ml 96 * * * <LOD <LOD <LOD <LOD 0% 0.250
8:2 FTCA 8:2 FTCA ng/ml 96 * * * <LOD <LOD <LOD <LOD 0% 0.500
8:2 FTS 8:2 FTS ng/ml 96 * * * <LOD <LOD <LOD <LOD 0% 0.0500
8:2 FTUCA 8:2 FTUCA ng/ml 96 * * * <LOD <LOD <LOD <LOD 0% 0.0120
8:2 PAP 8:2 PAP ng/ml 96 * * * <LOD <LOD <LOD <LOD 0% 0.500
Et-PFOSA-AcOH Et-PFOSA-AcOH ng/ml 96 * * * <LOD <LOD <LOD <LOD 5.2% 0.0500
Me-PFOSA-AcOH Me-PFOSA-AcOH ng/ml 96 0.0523 0.0421 0.0650 0.0256 0.0467 0.0959 0.228 95.8% 0.0120
PFBA PFBA ng/ml 96 * * * <LOD 0.0582 0.0846 0.140 62.5% 0.0500
PFBuS PFBuS ng/ml 96 * * * <LOD <LOD <LOD <LOD 0% 0.0442
PFDeA PFDeA ng/ml 96 0.477 0.406 0.559 0.281 0.453 0.739 1.49 80.2% 0.250
PFDoA PFDoA ng/ml 96 * * * <LOD 0.0540 0.0788 0.134 56.3% 0.0500
PFDS PFDS ng/ml 96 * * * <LOD 0.0104 0.0204 0.048 53.1% 0.00965
PFHpA PFHpA ng/ml 96 * * * <LOD <LOD 0.0574 0.0868 30.2% 0.0500
PFHxA PFHxA ng/ml 96 0.176 0.162 0.191 0.151 0.180 0.214 0.276 97.9% 0.0556
PFHxPA PFHxPA ng/ml 96 * * * <LOD <LOD <LOD <LOD 0% 0.0500
PFHxS PFHxS ng/ml 96 0.767 0.66 0.891 0.432 0.789 1.41 1.81 100% 0.00945
PFNA PFNA ng/ml 96 0.987 0.870 1.12 0.65 0.948 1.33 2.24 99% 0.250
PFOA PFOA ng/ml 96 1.41 1.23 1.61 0.998 1.36 2.16 2.85 100% 0.0500
PFOPA PFOPA ng/ml 96 * * * <LOD <LOD <LOD <LOD 0% 0.0500
PFOS PFOS ng/ml 96 6.51 5.49 7.73 3.32 6.05 11.7 19.3 100% 0.0566
PFOSA PFOSA ng/ml 96 * * * <LOD <LOD <LOD <LOD 0% 0.0120
PFPeA PFPeA ng/ml 96 * * * <LOD <LOD <LOD <LOD 0% 0.0500
PFUA PFUA ng/ml 96 0.398 0.348 0.455 0.301 0.427 0.600 0.824 100% 0.0500

Project: Asian/Pacific Islander Community Exposures (ACE) Project - ACE 2

A mulit-generational family of Asian-Americans sharing a meal
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Detection frequency Limit of Detection (LOD), wet-weight
4:2 FTS 4:2 FTS ng/ml 99 * * * <LOD <LOD <LOD <LOD 0% 0.0120
5:3 FTCA 5:3 FTCA ng/ml 99 * * * <LOD <LOD <LOD <LOD 2% 0.0500
6:2 diPAP 6:2 diPAP ng/ml 99 * * * <LOD <LOD <LOD <LOD 2% 0.0500
6:2 FTCA 6:2 FTCA ng/ml 99 * * * <LOD <LOD <LOD <LOD 0% 0.250
6:2 FTS 6:2 FTS ng/ml 99 * * * <LOD <LOD <LOD <LOD 3% 0.0500
6:2 FTUCA 6:2 FTUCA ng/ml 99 * * * <LOD <LOD <LOD <LOD 0% 0.0120
6:6 PFPiA 6:6 PFPiA ng/ml 99 * * * <LOD <LOD <LOD <LOD 0% 0.0100
6:8 PFPiA 6:8 PFPiA ng/ml 99 * * * <LOD <LOD <LOD <LOD 0% 0.0500
7:3 FTCA 7:3 FTCA ng/ml 99 * * * <LOD <LOD <LOD <LOD 5.1% 0.0500
8:2 diPAP 8:2 diPAP ng/ml 99 * * * <LOD <LOD <LOD <LOD 0% 0.250
8:2 FTCA 8:2 FTCA ng/ml 99 * * * <LOD <LOD <LOD <LOD 0% 0.500
8:2 FTS 8:2 FTS ng/ml 99 * * * <LOD <LOD <LOD <LOD 0% 0.0500
8:2 FTUCA 8:2 FTUCA ng/ml 99 * * * <LOD <LOD <LOD <LOD 0% 0.0120
8:2 PAP 8:2 PAP ng/ml 99 * * * <LOD <LOD <LOD <LOD 0% 0.500
Et-PFOSA-AcOH Et-PFOSA-AcOH ng/ml 99 * * * <LOD <LOD <LOD <LOD 3% 0.0500
Me-PFOSA-AcOH Me-PFOSA-AcOH ng/ml 99 0.0342 0.0291 0.0402 0.0197 0.0282 0.0538 0.114 97% 0.0120
PFBA PFBA ng/ml 99 0.0589 0.0531 0.0655 <LOD 0.0580 0.0736 0.0996 67.7% 0.0500
PFBuS PFBuS ng/ml 99 * * * <LOD <LOD <LOD <LOD 3% 0.0400
PFDeA PFDeA ng/ml 99 0.559 0.490 0.636 0.393 0.541 0.823 1.28 87.9% 0.250
PFDoA PFDoA ng/ml 99 * * * <LOD 0.0135 0.0226 0.0441 52.5% 0.0500
PFDS PFDS ng/ml 99 * * * <LOD 0.0505 0.0773 0.127 59.6% 0.0100
PFHpA PFHpA ng/ml 99 * * * <LOD <LOD <LOD 0.0699 20.2% 0.0500
PFHxA PFHxA ng/ml 99 0.189 0.166 0.215 0.124 0.174 0.268 0.453 98% 0.0600
PFHxPA PFHxPA ng/ml 99 * * * <LOD <LOD <LOD <LOD 0% 0.0500
PFHxS PFHxS ng/ml 99 1.29 1.14 1.45 0.787 1.21 1.81 3.05 100% 0.0100
PFNA PFNA ng/ml 99 1.10 0.988 1.22 0.84 1.08 1.49 2.21 99% 0.250
PFOA PFOA ng/ml 99 1.69 1.51 1.88 1.20 1.61 2.30 3.06 100% 0.0600
PFOPA PFOPA ng/ml 99 * * * <LOD <LOD <LOD <LOD 0% 0.0500
PFOS PFOS ng/ml 99 7.47 6.38 8.75 4.17 7.00 11.5 22.9 100% 0.191
PFOSA PFOSA ng/ml 99 * * * <LOD <LOD <LOD <LOD 3% 0.0100
PFPeA PFPeA ng/ml 99 * * * <LOD <LOD <LOD <LOD 0% 0.0500
PFUA PFUA ng/ml 99 0.453 0.391 0.525 0.309 0.443 0.740 1.12 98% 0.0500

Project: Biomonitoring Exposures Study (BEST) - 1.Pilot

Diverse group of smiling adults
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Et-PFOSA-AcOH Et-PFOSA-AcOH ng/mL 110 * * * <LOD <LOD 0.022 0.163 24.5% 0.0313 ng/mL
Me-PFOSA-AcOH Me-PFOSA-AcOH ng/mL 110 0.174 0.142 0.213 0.0945 0.165 0.329 1.350 95.5% 0.0277 ng/mL
PFBuS PFBuS ng/mL 110 * * * <LOD <LOD <LOD 0.0680 11.8% 0.0411 ng/mL
PFDeA PFDeA ng/mL 110 0.245 0.216 0.278 0.160 0.254 0.334 0.767 100% 0.0349 ng/mL
PFDoA PFDoA ng/mL 110 0.0191 0.0166 0.0221 <LOD 0.0193 0.0303 0.0595 70.0% 0.0114 ng/mL
PFHpA PFHpA ng/mL 110 0.0483 0.0395 0.0591 0.0246 0.0543 0.0901 0.269 87.3% 0.010 ng/mL
PFHxS PFHxS ng/mL 110 1.43 1.19 1.73 0.917 1.52 2.43 6.87 99.1% 0.0206 ng/mL
PFNA PFNA ng/mL 110 0.994 0.920 1.07 0.730 0.984 1.35 1.86 100% 0.0154 ng/mL
PFOA PFOA ng/mL 110 1.97 1.76 2.19 1.36 1.99 2.92 4.70 100% 0.0087 ng/mL
PFOS PFOS ng/mL 110 7.00 6.12 8.00 4.66 7.10 10.4 25.8 100% 0.0621 ng/mL
PFOSA PFOSA ng/mL 110 * * * <LOD 0.0254 0.0487 0.195 52.7% 0.0225 ng/mL
PFUA PFUA ng/mL 110 0.128 0.111 0.148 0.0737 0.123 0.195 0.533 100% 0.0254 ng/mL

Project: Biomonitoring Exposures Study (BEST) - 2.Expanded

Diverse group of smiling adults
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Et-PFOSA-AcOH Et-PFOSA-AcOH ng/mL 337 * * * <LOD <LOD 0.0208 0.0865 49.0% 0.00682 ng/mL
Me-PFOSA-AcOH Me-PFOSA-AcOH ng/mL 337 0.116 0.104 0.129 0.0591 0.117 0.217 0.595 97.6% 0.0114 ng/mL
PFDeA PFDeA ng/mL 337 0.188 0.173 0.205 0.106 0.188 0.305 0.662 82.5% 0.0877 ng/mL
PFDoA PFDoA ng/mL 337 * * * <LOD <LOD <LOD <LOD 3.3% 0.148 ng/mL
PFHpA PFHpA ng/mL 337 * * * <LOD 0.0228 0.0545 0.144 64.7% 0.0121 ng/mL
PFHxS PFHxS ng/mL 337 1.03 0.937 1.13 0.615 1.12 1.78 3.57 99.1% 0.0538 ng/mL
PFNA PFNA ng/mL 337 0.787 0.726 0.853 0.535 0.846 1.26 2.46 99.1% 0.0282 ng/mL
PFOA PFOA ng/mL 337 1.49 1.36 1.63 1.02 1.65 2.42 4.57 99.1% 0.0212 ng/mL
PFOS PFOS ng/mL 337 5.21 4.77 5.69 3.34 5.31 8.70 17.6 99.4% 0.0943 ng/mL
PFOSA PFOSA ng/mL 337 * * * <LOD <LOD <LOD 0.0954 28.2% 0.0426 ng/mL
PFUA PFUA ng/mL 337 0.106 0.0958 0.117 0.0567 0.112 0.205 0.502 83.4% 0.0371 ng/mL

Project: California Teachers Study (CTS)

95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Et-PFOSA-AcOH EtPFOSAAcOH ng/mL 1759 0.031 0.029 0.032 0.015 0.030 0.060 0.20 84.5% 0.011
Me-PFOSA-AcOH MePFOSAAcOH ng/mL 1759 0.20 0.19 0.21 0.10 0.20 0.41 1.3 98.4% 0.013
PFBuS PFBuS ng/mL 614 *,# * * <LOD <LOD <LOD 0.067 18.4% 0.022
PFDeA PFDeA ng/mL 1759 0.22 0.21 0.23 0.15 0.23 0.35 0.67 94.7% 0.032
PFDoA PFDoA ng/mL 1737 * * * <LOD <LOD <LOD 0.093 10.8% 0.036
PFHpA PFHpA ng/mL 1759 0.054 0.052 0.057 <LOD 0.054 0.11 0.28 74% 0.015
PFHxS PFHxS ng/mL 1759 1.62 1.56 1.68 1.04 1.58 2.50 6.24 99.9% 0.012
PFNA PFNA ng/mL 1719 0.92 0.89 0.95 0.67 0.95 1.3 2.3 99.7% 0.014
PFOA PFOA ng/mL 1759 2.46 2.39 2.53 1.69 2.50 3.63 6.22 99.9% 0.029
PFOS PFOS ng/mL 1759 6.80 6.56 7.04 4.57 7.14 10.9 19.5 99.8% 0.083
PFOSA PFOSA ng/mL 1597 0.036 0.034 0.039 <LOD 0.036 0.075 0.25 74.1% 0.01
PFUA PFUA ng/mL 1759 0.13 0.12 0.13 0.081 0.14 0.23 0.42 96.8% 0.01

Project: Firefighter Occupational Exposures (FOX) Project

Firefighters fighting flames, wearing full protective suits and holding large hoses spraying water
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD)
Et-PFOSA-AcOH EtPFOSAAcOH ng/mL 101 0.016 0.014 0.018 <LOD 0.016 0.023 0.060 65.3% 0.011
Me-PFOSA-AcOH MePFOSAAcOH ng/mL 101 0.16 0.13 0.18 0.086 0.14 0.24 0.61 100% 0.013
PFBuS PFBuS ng/mL 101 * * * <LOD <LOD <LOD 0.020 6.9% 0.02
PFDeA PFDeA ng/mL 101 0.899 0.783 1.03 0.512 0.721 1.72 2.63 100% 0.032
PFDoA PFDoA ng/mL 101 * * * <LOD <LOD <LOD <LOD 0% 0.040
PFHpA PFHpA ng/mL 101 0.13 0.11 0.15 0.06 0.12 0.22 0.63 75.2% 0.059
PFHxS PFHxS ng/mL 101 2.26 2 2.54 1.61 2.27 3.13 4.64 100% 0.012
PFNA PFNA ng/mL 101 1.15 1.06 1.25 0.888 1.13 1.49 2.21 100% 0.075
PFOA PFOA ng/mL 101 3.75 3.37 4.17 2.96 3.86 4.89 9.54 100% 0.301
PFOS PFOS ng/mL 101 12.5 11.3 13.8 10.1 12.7 16.8 24.7 100% 0.083
PFOSA PFOSA ng/mL 101 0.032 0.027 0.037 0.019 0.029 0.050 0.151 95.0% 0.009
PFUA PFUA ng/mL 101 0.24 0.21 0.27 0.17 0.26 0.37 0.53 100% 0.010

Project: Maternal and Infant Environmental Exposure Project (MIEEP)

Pregnant woman seated in front of a laptop computer
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Limit of Detection (LOD), wet-weight
Et-PFOSA-AcOH Et-PFOSA-AcOH ng/mL 77 * * * <LOD 0.012 0.021 0.026 0.011
Me-PFOSA-AcOH Me-PFOSA-AcOH ng/mL 77 0.067 0.055 0.082 0.037 0.064 0.10 0.20 0.013
PFBuS PFBuS ng/mL 77 * * * <LOD <LOD <LOD <LOD 0.022
PFDeA PFDeA ng/mL 77 * * * <LOD <LOD 0.035 0.64 0.032
PFDoA PFDoA ng/mL 77 * * * <LOD <LOD <LOD <LOD 0.036
PFHpA PFHpA ng/mL 77 * * * <LOD <LOD 0.071 0.14 0.059
PFNA PFNA ng/mL 77 0.733 0.621 0.865 0.504 0.791 1.11 1.74 0.075
PFOA PFOA ng/mL 77 * * * <LOD 0.474 0.811 1.25 0.30
PFOS PFOS ng/mL 77 2.55 2.20 2.95 1.78 2.43 4.11 4.90 0.083
PFOSA PFOSA ng/mL 77 0.019 0.016 0.022 0.012 0.017 0.026 0.049 0.01
PFUA PFUA ng/mL 77 0.131 0.101 0.170 0.0730 0.165 0.261 0.474 0.01

Project: Measuring Analytes in Maternal Archived Samples (MAMAS)

Pregnant woman standing, hands holding her belly, in an outdoor setting
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
Et-PFOSA-AcOH Et-PFOSA-AcOH ng/mL 200 * * * <LOD <LOD 0.018 0.029 29% 0.016 ng/mL
Me-PFOSA-AcOH Me-PFOSA-AcOH ng/mL 200 0.045 0.038 0.053 0.018 0.037 0.091 0.361 79.5% 0.015 ng/mL
PFDeA PFDeA ng/mL 200 0.198 0.174 0.226 0.095 0.212 0.373 0.908 83% 0.065 ng/mL
PFDoA PFDoA ng/mL 200 * * * <LOD <LOD <LOD 0.317 8% 0.174 ng/mL
PFHpA PFHpA ng/mL 200 0.045 0.040 0.052 0.022 0.048 0.095 0.198 83.5% 0.015 ng/mL
PFHxS PFHxS ng/mL 200 0.904 0.818 0.998 0.558 0.861 1.43 2.83 100% 0.025 ng/mL
PFNA PFNA ng/mL 200 0.647 0.596 0.703 0.442 0.644 0.952 1.74 100% 0.030 ng/mL
PFOA PFOA ng/mL 200 1.24 1.15 1.34 0.898 1.29 1.77 2.81 100% 0.039 ng/mL
PFOS PFOS ng/mL 200 4.20 3.82 4.62 2.62 4.47 6.75 12.3 100% 0.057 ng/mL
PFOSA PFOSA ng/mL 200 * * * <LOD <LOD 0.007 0.027 33.5% 0.005 ng/mL
PFUA PFUA ng/mL 200 0.124 0.107 0.144 0.048 0.118 0.275 0.717 78% 0.043 ng/mL

Chemical Group: Phthalates

  • Measured in: Urine

Project: Biomonitoring Exposures Study (BEST) - 1.Pilot

Diverse group of smiling adults
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
MBzP MBzP µg/L 109 7.49 5.99 9.36 3.65 7.27 18.6 41.9 100% 0.250 µg/L
MCHP mCHP µg/L 109 * * * <LOD <LOD <LOD <LOD 1.83% 0.500 µg/L
MCPP MCPP µg/L 109 1.88 1.52 2.32 1.03 1.64 3.41 14.6 100% 0.125 µg/L
MECPP MECPP µg/L 109 12.1 10.0 14.7 7.10 11.7 20.0 51.7 100% 0.500 µg/L
MEP MEP µg/L 109 57.1 45.2 72.1 25.5 52.1 103 584 97.2% 8.00 µg/L
MnBP MnBP µg/L 109 19.0 16.1 22.4 11.7 18.5 31.6 73.5 98.2% 2.00 µg/L

Project: Biomonitoring Exposures Study (BEST) - 2.Expanded

Diverse group of smiling adults
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
MBzP Mono-benzyl phthalate (MBzP) ng/mL 218 6.00 5.13 7.02 3.00 6.03 11.9 54.8 100% 0.200 ng/mL
MCHP Mono-cyclohexyl phthalate ng/mL 218 * * * <LOD <LOD <LOD <LOD 0.459% 0.100 ng/mL
MCPP Mono-3-carboxypropyl phthalate (MCPP) ng/mL 218 1.91 1.62 2.24 0.943 1.77 4.19 16.0 99.1% 0.100 ng/mL
MECPP Mono-(2-ethyl-5-carboxypentyl) phthalate (MECPP) ng/mL 218 9.72 8.51 11.1 5.56 10.2 18.6 47.9 100% 0.190 ng/mL
MEHHP Mono-(2-ethyl-5-hydroxyhexyl) phthalate (MEHHP) ng/mL 218 6.19 5.37 7.13 3.58 6.81 11.8 31.3 99.5% 0.190 ng/mL
MEHP Mono-2-ethylhexyl phthalate ng/mL 218 1.89 1.60 2.23 0.909 2.08 4.31 13.7 93.6% 0.190 ng/mL
MEOHP Mono-(2-ethyl-5-oxohexyl) phthalate ng/mL 218 4.43 3.86 5.09 2.45 4.66 7.96 19.7 99.5% 0.100 ng/mL
MEP Mono-ethyl phthalate (MEP) ng/mL 218 52.4 43.9 62.6 21.2 46.1 110 826 100% 0.460 ng/mL
MIBP Mono-isobutyl phthalate ng/mL 218 7.12 6.21 8.16 3.84 6.71 12.0 38.0 94.0% 1.60 ng/mL
MnBP Mono-n-butyl phthalate (MnBP) ng/mL 218 14.3 12.4 16.6 7.74 16.2 27.8 79.7 98.2% 0.910 ng/mL

Project: Center for the Health Assessment of Mothers and Children of Salinas (CHAMACOS)

Chamacos logo shows a drawing of a sun with a face on it, and beneath this, a scroll with the word "chamacos"
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Detection frequency Limit of Detection (LOD), wet-weight
MEP Diethyl phthalate (DEP) μg/L 49 85 63.1 115 41.3 70.0 211 403 100% 8.0
MnBP Dibutyl phthalate (DBP), Benzylbutyl phthalate (BzBP) μg/L 49 46.9 37.0 59.4 26.8 49.0 75.2 115 100% 2.0

Project: Firefighter Occupational Exposures (FOX) Project

Firefighters fighting flames, wearing full protective suits and holding large hoses spraying water
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
MBzP Benzylbutyl phthalate (BzBP) μg/L 101 8.18 6.56 10.2 3.93 7.76 14.9 41.3 100% 0.25
MCHP Dicyclohexyl phthalate (DCHP) μg/L 101 * * * <LOD <LOD <LOD <LOD 4.0% 0.50
MCPP Di-n-octyl phthalate (DnOP) μg/L 101 1.88 1.46 2.42 0.819 1.69 4.07 21.1 98.0% 0.125
MECPP Di-2-ethylhexyl phthalate (DEHP) μg/L 101 12.3 10.1 14.9 5.89 12.4 23.2 58.3 100% 0.50
MEP Diethyl phthalate (DEP) μg/L 101 52.9 38.1 73.4 20.6 46.6 168 740 79.2% 8.0
MnBP Dibutyl phthalate (DBP), Benzylbutyl phthalate (BzBP) μg/L 101 10.6 8.83 12.8 5.69 10.6 20.2 40.6 97.0% 2.0

Project: Markers of Autism Risk in Babies–Learning Early Signs (MARBLES)

Study logo shows a circular image of two parents with an infant cradled between them
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Detection frequency Limit of Detection (LOD), wet-weight
MEP Diethyl phthalate (DEP) μg/L 15 62.4 32.2 121 -- 52.6 -- -- 100% 8.0
MnBP Dibutyl phthalate (DBP), Benzylbutyl phthalate (BzBP) μg/L 15 21.9 14.4 33.5 -- 21.3 -- -- 100% 2.0

Project: Markers of Autism Risk in Babies–Learning Early Signs (MARBLES)

Study logo shows a circular image of two parents with an infant cradled between them
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Detection frequency Limit of Detection (LOD), wet-weight
MEP Diethyl phthalate (DEP) μg/L 13 65.1 26.0 163 -- 31.5 -- -- 100% 8.0
MnBP Dibutyl phthalate (DBP), Benzylbutyl phthalate (BzBP) μg/L 13 21.1 10.8 41.2 -- 23.2 -- -- 100% 2.0

Project: Maternal and Infant Environmental Exposure Project (MIEEP)

Pregnant woman seated in front of a laptop computer
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Limit of Detection (LOD), wet-weight
MBzP Benzylbutyl phthalate (BzBP) μg/L 89 7.73 5.84 10.2 2.72 6.54 18.4 53.4 0.25
MCHP Dicyclohexyl phthalate (DCHP) μg/L 89 * * * <LOD <LOD <LOD <LOD 0.50
MCPP Di-n-octyl phthalate (DnOP) μg/L 89 0.87 0.72 1.05 0.48 0.75 1.2 2.8 0.125
MECPP Di-2-ethylhexyl phthalate (DEHP) μg/L 89 17.1 13.5 21.7 8.09 14.6 29.4 68.8 0.50
MEP Diethyl phthalate (DEP) μg/L 89 95.5 69.3 132 34.7 103 254 679 8.0
MnBP Dibutyl phthalate (DBP), Benzylbutyl phthalate (BzBP) μg/L 89 16.3 13.0 20.5 6.59 16.2 34.2 60.8 2.0

Chemical Group: Polybrominated Diphenyl Ethers (PBDEs)

  • Measured in: Serum

Project: Biomonitoring Exposures Study (BEST) - 1.Pilot

Diverse group of smiling adults
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
BDE 017 BDE 17 ng/g lipid 110 * * * <LOD <LOD <LOD <LOD 1.8% 0.003 ng/mL
BDE 028 BDE 28 ng/g lipid 110 1.81 1.52 2.16 1.02 1.64 2.63 10.2 91.8% 0.003 ng/mL
BDE 047 BDE 47 ng/g lipid 110 25.8 21.0 31.6 12.3 26.9 43.2 134 99.1% 0.023 ng/mL
BDE 066 BDE 66 ng/g lipid 110 * * * <LOD <LOD <LOD 1.02 9.1% 0.004 ng/mL
BDE 085 BDE 85 ng/g lipid 110 * * * <LOD <LOD <LOD 3.49 20.0% 0.004 ng/mL
BDE 099 BDE 99 ng/g lipid 110 4.75 3.85 5.85 2.08 4.30 8.36 54.7 80.9% 0.012 ng/mL
BDE 100 BDE 100 ng/g lipid 110 4.02 3.24 4.98 2.07 3.72 6.75 39.1 89.1% 0.006 ng/mL
BDE 153 BDE 153 ng/g lipid 110 13.9 11.6 16.8 7.08 12.5 24.6 98.4 99.1% 0.008 ng/mL
BDE 154 BDE 154 ng/g lipid 110 * * * <LOD <LOD <LOD 5.12 17.3% 0.007 ng/mL
BDE 183 BDE 183 ng/g lipid 110 * * * <LOD <LOD <LOD <LOD 3.6% 0.007 ng/mL
BDE 197 BDE 197 ng/g lipid 110 * * * <LOD <LOD 1.76 4.38 42.7% 0.007 ng/mL
BDE 201 BDE 201 ng/g lipid 110 * * * <LOD <LOD <LOD <LOD 4.5% 0.006 ng/mL
BDE 202 BDE 202 ng/g lipid 110 * * * <LOD <LOD <LOD <LOD 0.9% 0.007 ng/mL
BDE 203 BDE 203 ng/g lipid 110 * * * <LOD <LOD <LOD <LOD 0.9% 0.007 ng/mL
BDE 206 BDE 206 ng/g lipid 110 * * * <LOD <LOD <LOD <LOD 4.5% 0.009 ng/mL
BDE 207 BDE 207 ng/g lipid 110 * * * <LOD <LOD <LOD 2.57 18.2% 0.011 ng/mL
BDE 208 BDE 208 ng/g lipid 110 * * * <LOD <LOD <LOD <LOD 2.7% 0.010 ng/mL
BDE 209 BDE 209 ng/g lipid 110 * * * <LOD <LOD 5.65 15.5 38.2% 0.030 ng/mL

Project: Biomonitoring Exposures Study (BEST) - 2.Expanded

Diverse group of smiling adults
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
BDE 017 BDE 17 ng/g lipid 217 * * * * * * * 0% 0.008 ng/mL
BDE 028 BDE 28 ng/g lipid 217 * * * <LOD <LOD 2.41 5.38 48.8% 0.008 ng/mL
BDE 047 BDE 47 ng/g lipid 217 20.3 17.8 23.2 9.77 21.7 37.0 119 98.6% 0.017 ng/mL
BDE 066 BDE 66 ng/g lipid 217 * * * <LOD <LOD <LOD <LOD 1.4% 0.008 ng/mL
BDE 085 BDE 85 ng/g lipid 217 * * * <LOD <LOD <LOD 2.34 9.2% 0.008 ng/mL
BDE 099 BDE 99 ng/g lipid 217 4.31 3.77 4.92 2.03 3.84 8.55 27.0 89.4% 0.009 ng/mL
BDE 100 BDE 100 ng/g lipid 217 4.31 3.76 4.94 1.85 4.11 8.89 26.2 86.6% 0.008 ng/mL
BDE 153 BDE 153 ng/g lipid 217 11.1 9.73 12.8 5.72 10.3 20.0 65.6 93.1% 0.016 ng/mL
BDE 154 BDE 154 ng/g lipid 217 * * * <LOD <LOD <LOD <LOD 3.7% 0.016 ng/mL
BDE 183 BDE 183 ng/g lipid 217 * * * <LOD <LOD <LOD <LOD 0.5% 0.016 ng/mL
BDE 197 BDE 197 ng/g lipid 217 * * * <LOD <LOD <LOD 3.81 9.7% 0.016 ng/mL
BDE 201 BDE 201 ng/g lipid 217 * * * <LOD <LOD <LOD <LOD 0.5% 0.016 ng/mL
BDE 202 BDE 202 ng/g lipid 217 * * * <LOD <LOD <LOD <LOD 0.5% 0.016 ng/mL
BDE 203 BDE 203 ng/g lipid 217 * * * <LOD <LOD <LOD <LOD 0.5% 0.016 ng/mL
BDE 206 BDE 206 ng/g lipid 217 * * * <LOD <LOD <LOD <LOD 0.9% 0.020 ng/mL
BDE 207 BDE 207 ng/g lipid 217 * * * <LOD <LOD <LOD 4.30 5.1% 0.020 ng/mL
BDE 208 BDE 208 ng/g lipid 217 * * * <LOD <LOD <LOD <LOD 0.9% 0.020 ng/mL
BDE 209 BDE 209 ng/g lipid 190 * * * <LOD <LOD <LOD <LOD 0.5% 0.257 ng/mL

Project: California Childhood Leukemia Study (CCLS)

Logo shows three young bears in yellow color standing in a row holding hands, with the name of the study shown in blue
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Detection frequency Limit of Detection (LOD), wet-weight
BDE 047 BDE 47 ng/g lipid 48 43 33 56 23 35 68 110 98% 0.074 ng/mL
BDE 099 BDE 99 ng/g lipid 48 11 8.5 14 6.5 10.1 12.7 25 100% 0.018 ng/mL
BDE 100 BDE 100 ng/g lipid 48 12 10 15 8.0 10 15 22 100% 0.015 ng/mL
BDE 153 BDE 153 ng/g lipid 48 10 7.6 14 5.0 8.9 16 46 96% 0.015 ng/mL
BDE 154 BDE 154 ng/g lipid 48 * * * <LOD <LOD 3.6 5.7 48% 0.015 ng/mL

Project: California Teachers Study (CTS)

95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
BDE 017 BDE 17 ng/g lipid 1980 * * * <LOD <LOD <LOD <LOD 0.2% 0.006 ng/mL
BDE 028 BDE 28 ng/g lipid 1980 * * * <LOD <LOD 1.96 4.73 42.9% 0.008 ng/mL
BDE 047 BDE 47 ng/g lipid 1980 14.1 13.6 14.7 7.22 13.1 25.3 73.5 86.4% 0.024 ng/mL
BDE 066 BDE 66 ng/g lipid 1980 * * * <LOD <LOD <LOD <LOD 0.05% 0.007 ng/mL
BDE 085 BDE 85 ng/g lipid 1980 * * * <LOD <LOD <LOD 1.87 7.8% 0.002 ng/mL
BDE 099 BDE 99 ng/g lipid 1980 * * * <LOD <LOD 5.00 16.0 44.3% 0.018 ng/mL
BDE 100 BDE 100 ng/g lipid 1980 2.62 2.50 2.73 1.19 2.31 4.71 15.7 75.9% 0.004 ng/mL
BDE 153 BDE 153 ng/g lipid 1980 5.60 5.34 5.85 2.66 4.75 9.48 43.1 77% 0.009 ng/mL
BDE 154 BDE 154 ng/g lipid 1980 * * * <LOD <LOD <LOD <LOD 3.9% 0.007 ng/mL
BDE 183 BDE 183 ng/g lipid 1980 * * * <LOD <LOD <LOD <LOD 1.7% 0.007 ng/mL
BDE 197 BDE 197 ng/g lipid 1980 * * * <LOD <LOD <LOD 3.58 8.4% 0.005 ng/mL
BDE 201 BDE 201 ng/g lipid 1980 * * * <LOD <LOD <LOD <LOD 2.5% 0.005 ng/mL
BDE 202 BDE 202 ng/g lipid 1980 * * * <LOD <LOD <LOD <LOD 2.9% 0.005 ng/mL
BDE 203 BDE 203 ng/g lipid 1980 * * * <LOD <LOD <LOD <LOD 2.1% 0.005 ng/mL
BDE 206 BDE 206 ng/g lipid 1862 * * * <LOD <LOD <LOD <LOD 3.3% 0.004 ng/mL
BDE 207 BDE 207 ng/g lipid 1857 * * * <LOD <LOD <LOD 4.56 9.3% 0.006 ng/mL
BDE 208 BDE 208 ng/g lipid 1814 * * * <LOD <LOD <LOD <LOD 3.7% 0.003 ng/mL
BDE 209 BDE 209 ng/g lipid 1797 * * * <LOD <LOD <LOD 33.3 8.7% 0.053 ng/mL

Project: Firefighter Occupational Exposures (FOX) Project

Firefighters fighting flames, wearing full protective suits and holding large hoses spraying water
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
BDE 017 BDE 17 ng/g lipid 101 * * * <LOD <LOD <LOD <LOD 1.0% 0.003 ng/mL
BDE 028 BDE 28 ng/g lipid 101 1.70 1.50 1.93 1.17 1.63 2.38 5.09 97.0% 0.003 ng/mL
BDE 047 BDE 47 ng/g lipid 101 32.2 27.8 37.5 19.3 29.9 47.9 150 99.0% 0.038 ng/mL
BDE 066 BDE 66 ng/g lipid 101 * * * <LOD <LOD <LOD 0.635 5.9% 0.003 ng/mL
BDE 085 BDE 85 ng/g lipid 101 * * * <LOD <LOD 0.655 1.82 34.7% 0.003 ng/mL
BDE 099 BDE 99 ng/g lipid 101 6.19 5.35 7.17 3.54 5.79 9.12 22.6 90.1% 0.017 ng/mL
BDE 100 BDE 100 ng/g lipid 101 5.68 4.77 6.75 3.31 5.14 8.14 32.7 98.0% 0.005 ng/mL
BDE 153 BDE 153 ng/g lipid 101 15.4 12.9 18.2 9.01 12.9 21.1 63.1 100% 0.005 ng/mL
BDE 154 BDE 154 ng/g lipid 101 * * * <LOD <LOD <LOD 2.71 19.8% 0.007 ng/mL
BDE 183 BDE 183 ng/g lipid 101 * * * <LOD <LOD <LOD <LOD 5.0% 0.007 ng/mL
BDE 197 BDE 197 ng/g lipid 101 * * * <LOD 1.25 1.93 3.84 62.4% 0.007 ng/mL
BDE 201 BDE 201 ng/g lipid 101 * * * <LOD <LOD <LOD <LOD 5.0% 0.007 ng/mL
BDE 202 BDE 202 ng/g lipid 101 * * * <LOD <LOD <LOD <LOD 1.0% 0.007 ng/mL
BDE 203 BDE 203 ng/g lipid 101 * * * <LOD <LOD <LOD <LOD 1.0% 0.007 ng/mL
BDE 206 BDE 206 ng/g lipid 101 * * * <LOD <LOD <LOD 1.99 11.9% 0.009 ng/mL
BDE 207 BDE 207 ng/g lipid 101 * * * <LOD 1.31 1.72 4.53 50.5% 0.009 ng/mL
BDE 208 BDE 208 ng/g lipid 101 * * * <LOD <LOD <LOD 1.59 7.9% 0.009 ng/mL
BDE 209 BDE 209 ng/g lipid 101 * * * <LOD <LOD 28.3 93.7 28.7% 0.150 ng/mL

Project: Maternal and Infant Environmental Exposure Project (MIEEP)

Pregnant woman seated in front of a laptop computer
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Limit of Detection (LOD), wet-weight
BDE 017 BDE 17 ng/g lipid 77 * * * <LOD <LOD <LOD <LOD 0.005 ng/mL
BDE 028 BDE 28 ng/g lipid 77 * * * <LOD <LOD 0.75 1.6 0.005 ng/mL
BDE 047 BDE 47 ng/g lipid 77 9.56 7.54 12.1 4.67 8.34 16.0 33.0 0.023 ng/mL
BDE 066 BDE 66 ng/g lipid 77 * * * <LOD <LOD <LOD <LOD 0.005 ng/mL
BDE 085 BDE 85 ng/g lipid 77 * * * <LOD <LOD <LOD <LOD 0.005 ng/mL
BDE 099 BDE 99 ng/g lipid 77 * * * <LOD 2.74 5.02 9.92 0.019 ng/mL
BDE 100 BDE 100 ng/g lipid 77 2.17 1.70 2.77 0.960 1.96 3.95 8.11 0.005 ng/mL
BDE 153 BDE 153 ng/g lipid 77 2.64 2.01 3.47 0.980 1.94 7.66 14.9 0.005 ng/mL
BDE 154 BDE 154 ng/g lipid 77 * * * <LOD <LOD <LOD <LOD 0.007 ng/mL
BDE 183 BDE 183 ng/g lipid 77 * * * <LOD <LOD <LOD <LOD 0.007 ng/mL
BDE 197 BDE 197 ng/g lipid 77 * * * <LOD <LOD 0.93 1.5 0.007 ng/mL
BDE 201 BDE 201 ng/g lipid 77 * * * <LOD <LOD <LOD <LOD 0.007 ng/mL
BDE 202 BDE 202 ng/g lipid 77 * * * <LOD <LOD <LOD <LOD 0.007 ng/mL
BDE 203 BDE 203 ng/g lipid 77 * * * <LOD <LOD <LOD <LOD 0.007 ng/mL
BDE 206 BDE 206 ng/g lipid 77 * * * <LOD <LOD <LOD <LOD 0.009 ng/mL
BDE 207 BDE 207 ng/g lipid 77 * * * <LOD <LOD <LOD 2.07 0.009 ng/mL
BDE 208 BDE 208 ng/g lipid 77 * * * <LOD <LOD <LOD <LOD 0.009 ng/mL
BDE 209 BDE 209 ng/g lipid 77 * * * <LOD 5.41 9.31 13.5 0.045 ng/mL

Project: Measuring Analytes in Maternal Archived Samples (MAMAS)

Pregnant woman standing, hands holding her belly, in an outdoor setting
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 90th Detection frequency Limit of Detection (LOD), wet-weight
BDE 017 BDE 17 ng/g lipid 58 * * * <LOD <LOD <LOD <LOD 0% 0.011 ng/mL
BDE 028 BDE 28 ng/g lipid 58 * * * <LOD <LOD <LOD <LOD 3.4% 0.011 ng/mL
BDE 047 BDE 47 ng/g lipid 58 13.7 11.1 16.8 6.57 13.9 22.8 38.7 75.9% 0.043 ng/mL
BDE 066 BDE 66 ng/g lipid 58 * * * <LOD <LOD <LOD <LOD 0% 0.011 ng/mL
BDE 085 BDE 85 ng/g lipid 58 * * * <LOD <LOD <LOD <LOD 0% 0.011 ng/mL
BDE 099 BDE 99 ng/g lipid 58 * * * <LOD <LOD 6.86 17.7 43.1% 0.023 ng/mL
BDE 100 BDE 100 ng/g lipid 58 * * * <LOD 2.57 5.04 12.4 62.1% 0.011 ng/mL
BDE 153 BDE 153 ng/g lipid 58 * * * <LOD 6.05 10.9 22.2 63.8% 0.021 ng/mL
BDE 154 BDE 154 ng/g lipid 58 * * * <LOD <LOD <LOD <LOD 0% 0.021 ng/mL

Chemical Group: Polychlorinated Biphenyls (PCBs)

  • Measured in: Serum

Project: Biomonitoring Exposures Study (BEST) - 1.Pilot

Diverse group of smiling adults
95% Confidence Interval Selected Percentiles
Chemical measured Indicates exposure to Units Number of people tested Geometric mean Lower Upper 25th 50th 75th 95th Detection frequency Limit of Detection (LOD), wet-weight
PCB 066 PCB 066 ng/g lipid 110 * * * <LOD <LOD 1.45 2.84 38.2% 0.00800 ng/mL
PCB 074 PCB 074 ng/g lipid 110 3.63 3.12 4.23 1.91 3.27 7.18 13.1 92.7% 0.00800 ng/mL
PCB 099 PCB 099 ng/g lipid 110 2.89 2.49 3.36 1.61 2.81 4.31 11.9 85.5% 0.00800 ng/mL
PCB 101 PCB 101 ng/g lipid 110 * * * <LOD <LOD 1.36 2.34 28.2% 0.00800 ng/mL
PCB 105 PCB 105 ng/g lipid 110 * * * <LOD <LOD 1.73 4.54 41.8% 0.00800 ng/mL
PCB 118 PCB 118 ng/g lipid 110 4.84 4.10 5.71 2.43 4.14 8.48 19.8 96.4% 0.00800 ng/mL
PCB 138 PCB 138 ng/g lipid 110 9.60 8.11 11.4 5.18 9.81 16.7 43.4 98.2% 0.00800 ng/mL
PCB 153 PCB 153 ng/g lipid 110 22.0 18.5 26.1 12.8 24.7 40.5 99.0 99.1% 0.00800 ng/mL
PCB 156 PCB 156 ng/g lipid 110 3.48 2.99 4.06 1.85 3.66 5.69 13.7 85.5% 0.00800 ng/mL
PCB 170 PCB 170 ng/g lipid 110 6.30 5.36 7.40 3.99 6.85 11.9 23.2 92.7% 0.00800 ng/mL
PCB 180 PCB 180 ng/g lipid 110 21.8 18.2 26.2 13.8 25.7 41.9 79.6 99.1% 0.00800 ng/mL
PCB 183 PCB 183 ng/g lipid 110 2.00